Mitosis Biology 1114.

Slides:



Advertisements
Similar presentations
1 Cell Reproduction copyright cmassengale. 2 Types of Cell Reproduction Asexual reproduction involves a single cell dividing to make 2 new, identical.
Advertisements

Cell Reproduction. Reproduction of Prokaryotes Prokaryotes reproduce through a process called binary fission The single, circular chromosome (which is.
Name______________________________ Date_______ Period______ Chapter 9 The Life Cycles of Cells and Reproduction.
Mitosis Biology Definitions Asexual ReproductionInterphase AstersKaryotype Cell PlateKinetochore CentriolesMeiosis CentromereMetaphase ChromatidMitosis.
Mitosis & Cytokinesis Chapter 10.
Cell Cycle Consists of the following: –G1 phase –S phase –G2 phase –M Phase –Cytokinesis.
Cellular Division.
Chapter 8 Cell Reproduction R. LeBlanc, MS MPHS Modified: 10/’11.
Chapter 10 Cell Growth and Division. Cell Reproduction Why do cells Reproduce? To help tissues and organs grow and to replace dead or damaged cells Cells.
CELL DIVISION. NUCLEUS Contains genetic information (DNA) Normally, DNA is in the formed of long strands called chromatin.
Chapter 9 Page 244 CELLULAR REPRODUCTION  Cells grow until they reach their size limit, then their either stop growing or divide.  Limitation for cell.
Biology Unit 5.  DNA “overload” Cells require a certain amount of DNA (the instructions for protein synthesis and other processes)  Exchange of materials.
MEIOSIS.
Cell Division and Differentiation
Cell Division—Mitosis Notes
Mitosis and Cell Cycle Asexual Reproduction.
Chapter 9 Cell Reproduction.
Life of a cell: The Cell cycle
Cellular Division.
Cellular Division.
Mitosis H Biology Lane Tech.
The Cell Cycle.
Cellular Division.
Mitosis Asexual Reproduction.
Chapter 9 Cell Reproduction.
What is happening in this picture?
The Life & Death of Cells
Cell Cycle & Division Biology I.
Mitosis and the Cell Cycle
Mitosis and Meiosis Asexual v. Sexual Reproduction
Life Cycle of a Cell.
Cell Division—Mitosis Notes
Cell Division—Mitosis Notes
Cell Division and Mitosis
Cell Division Mitosis.
Cell Division
Cellular Reproduction and Chromosomes
Cellular Division.
Life Cycle of a Cell.
8.1 – 8.11 Cell Reproduction and Growth
Asexual Reproduction Getting to the Details.
The Cell Cycle: Creating Somatic Cells
Chapter 5 : Cell Growth and Division
Cell Division—Mitosis Notes
Chapter 9 – The Cellular Basis of Inheritance
Chapter 5: Cell Growth and Division
The Cell Cycle.
Cell Division—Mitosis Notes
Mitosis & the Cell Cycle
Lesson Overview Phases of Mitosis.
Cell Growth & Division Biology  Pearland ISD.
Chapter Nine: Mitosis Notes pt. 1
Mitosis and Meiosis Asexual v. Sexual Reproduction
copyright cmassengale
Mitosis and Meiosis Asexual v. Sexual Reproduction
Cell Division and Mitosis
Lecture 6: Cell division
Cellular Division.
Cell Division—Mitosis Notes
Mitosis and Asexual Reproduction.
Cell Division—Mitosis Notes
Types of Asexual Reproduction
Cell Division—Mitosis Notes
Mitosis and Cancer You will learn: -Reasons Cells Divide
Cell Division—Mitosis Notes
Cell Division Mitosis.
Cell Division Ch 5 & 6.
Chapter 5: Cell Growth and Division
Cell Division—Mitosis Notes
Presentation transcript:

Mitosis Biology 1114

Definitions Asexual Reproduction Interphase Asters Karyotype Cell Plate Kinetochore Centrioles Meiosis Centromere Metaphase Chromatid Mitosis Chromatin Ploidy Chromosomes Prophase Diplois S Phase G1 Phase Spindle Fibers G2 Phase Sporophyte Gamete Synapsis Cametophyte Telophase Haploid Zygote

Two Types of Life Forms Unicellular 1. The Invisible World 2. Original Life 3. Found Everywhere 4. Photosynthesis and Decomposition 5. Potentially Immortal Multicellular 1. Communal 2. Growth and Division Necessary

Cell Growth and Division Uses Process of Mitosis Allows for Growth from Infant to Adult Necessary to Replace Worn Tissues Necessary for Generating New Cells Note: Somatic Cells reproduce by mitosis. Sex Cells reproduce by meiosis.

Prokaryotic Cells are Much Simpler in their Organization than are Eukaryotes

Simple Prokaryotic Reproduction Replicates Attaches Separates

Creates Genetic Equals Advantage is that all cells are genetic equals. Disadvantage is that all cells are genetic equals. Binary Fission is Simple Cloning

Celebrity Sheep Has Died at Age 6 Dolly, the first mammal to be cloned from adult DNA, was put down by lethal injection Feb. 14, 2003. Prior to her death, Dolly had been suffering from lung cancer and crippling arthritis. Although most Finn Dorset sheep live to be 11 to 12 years of age, postmortem examination of Dolly seemed to indicate that, other than her cancer and arthritis, she appeared to be quite normal. The unnamed sheep from which Dolly was cloned had died several years prior to her creation. Dolly was a mother to six lambs, bred the old-fashioned way.

Eukaryotic Cell Divison and Chromatin DNA and Histone Protein Complex Dispersed in the Nucleus Has Ability to Condense

Chromosomes When Chromatin Condenses During Cell Divison It is Referred to as Chromosomes

Human Chromosomes

Human Karyotype

Mitosis A process of forming generally similar daughter cells by replicating and dividing the original chromosomes. Cellular division used by simple organisms. The sequence of DNA replication, growth and cell division that cells go through.

Interphase No Division Occurring Metabolically Active Nucleolus Visible DNA and Organelles Duplicating Nucleus is Intact 90% of Cell’s Time is Spent in Interphase

Prophase Nucleolus Disappears Centrioles Move to Poles Spindle Fibers Form Chromosomes Visible Nuclear Membrane Disappears

Metaphase Shortest Phase Chromosomes Line up in Middle of Cell

Anaphase Chromosomes Separate into Separate Chromatids Begin to Move to Opposite Ends of the Cell

Telophase Chromosomes Arrive at Poles Disappear into Chromatin Spindles Disappear Nuclear Membrane Reappears Nucleolus Reappears

Review

Identify the Following Stage of Mitosis

Identify the Following Stage of Mitosis

Identify the Following Stage of Mitosis

Identify the Following Stage of Mitosis

Identify the Following Stage of Mitosis

Cancer results when normal body cells grow out of control without regulation. They can invade other tissues causing enough damage to kill the host.

Control of Mitosis and Cancer 6.5 Million Cases of cancer in USA Yearly Not all Cancers are Lethal Tumor = Mass of Cancer Cells Benign = Remain Localized Malignant = Escape Site and Spreading Metastasis = Spreading Treatment = Radiation and Chemotherapy

Metastasis

Basal Cell Carcinoma Non-melanoma skin cancers are far more common but less dangerous than malignant melanoma and rarely fatal. Basal cell carcinoma and squamous cell carcinoma frequently appear on sun-exposed skin after many years of exposure. This exposure also causes premature ageing of the skin. Non-malignant skin cancers are easily treated by minor surgery. If left, non-melanoma skin cancers will grow and disfigure - therefore early treatment is recommended.

Skin Cancer Malignant melanoma is the rarest, but most serious form. It affects the pigment-producing cells (melanocytes) found in the skin and can appear as a new mole, or arise from an existing mole on the skin. Malignant melanoma has the potential to spread to other sites or organs within the body but is CURABLE if treated early.

Sunshine is the single most important causative factor in all skin cancers.

Skin Cancer

Tobacco is a Carcinogen

Oral Cancer Associated with Tobacco Use

Cigarette smokers, depending on the number of cigarettes smoked have a six-fold increase of dying from oral and pharyngial cancer as a non-smoker Health Canada

Systemic Tumors

Cancer of the Kidney

Brain Cancer